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05-06-2019
Mathematics

contestada

A. 3
B. 5
C.9
D. 15

A 3 B 5 C9 D 15 class=

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21jrd02 21jrd02

05-06-2019

Answer: 15

Step-by-step explanation

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05-06-2019

Answer:

3

Step-by-step explanation:

[tex]\underline{+\left\{\begin{array}{ccc}2x+3y=9\\-2x+2y=6\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad5y=15\qquad\text{divide both sides by 5}\\.\qquad\qquad\boxed{y=3}[/tex]

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